Capital Refractories Capital Refractories supply Refracoarse (a high quality chamotte), fused silica and fused mullite for use by investment casters for core build-up. Closed sizings have low dust levels.
The typical chemistries are shown in the table below.
![43.png]( "43.png")
Typical sizings are shown in the table below, although other gradings may be available on request.
![44.png]( "44.png")
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